Chosen Solution
So recently I tried to turn on my Mac and nothing happened, I tried charging it and no light came on the charger, I bought a new charger and it also didn’t work, I cleaned the charge port and left the charger in for about an hour but still nothing, I tried a SMC restart but still nothing, There is no dirt in the cage port and both chargers work on another Mac. The Mac is completely dead, no light on charger, not turning on and SMC doesn’t work, any solutions?
Try disconnecting the battery to see if anything changes, but there’s probably an issue with the I/O board..I would replace that as first thing.
